I have sensitive ears...can I wear these earrings?

I got a cute pair of earrings from Nordstrom Rack for 9 USD. Before I bought these, I have been wearing the same pair of hypoallergenic earrings my pediatrician gave me when I got them pierced at her office. I clean them daily. The earrings say "Sterling Silver" and "Cubic Zirconia". I have pretty sensitive ears. Do you know if I'll be able to wear them?